We are pleased to offer for sale this Postcard Storage Box for up to 700 Postcards by BCW! The BCW Postcard Storage Box is the highest quality, most competitively priced cardboard storage box on the market today. It is constructed of white corrugated paper and has a 200 lb. test strength. This two-piece box holds approximately 700 4"x5" or 4"x6" postcards. This item is new from our inventory.